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pioneer plants FOR ECOSYSTEM RECOVERY IN DRAINAGE BASIN OF ERLONGSHAN RESERVOIR IN HEILONGJIANG PROVINCE, CHINA

Chinese Geographical Science 2004年第4期14卷 377-381页

作者： ZHANGXue-ping ZHANGYi CAOHui-cong CollegeofLifeandEnvironment HarbinNormalUniversityHarbin150080P.R.China NortheastInstituteofGeographyandAgriculturalEcology ChineseAcademyofSciencesChangchun130012P.R.China

This article reveals the ecological features and the theories and methods of introducing pioneer plants in the process of eco-restoring in different degenerative ecosystems in the drainage basin of Erlongshan Reservoir in Heilongjiang Province by systemically studying the deteriorative ecosystems and using recovery theory. The study shows that with the rise in degenerative degrees of the ecosystems, bio-species and bio-diversity sharply decrease in the study area and microclimate becomes warmer and drier in natural ecosystem. Therefore, we must attach importance to the construction of plants and biodiversity. In the study, different pioneer plants are selected for different degenerative ecosystems to restore and maintain the service functions of the ecosystems.

关键词： degenerative ecosystem pioneer plants biodiversity

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Salt ions accumulation and distribution characteristics of pioneer plant species at a bauxite residue disposal area, China

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Journal of Central South University 2019年第2期26卷 323-330页

作者： HUANG Nan TANG Lu ZHU Feng WU Chuan ZHOU Jing-ju XUE Sheng-guo School of Metallurgy and Environment Central South University Crop and Environment Sciences Department Harper Adams University

Bauxite residue disposal areas(BRDAs)are physically degraded and hostile to plant ***,natural plant colonization was observed in an abandoned BRDA in Central *** pioneer plant species at the disposal area were identified,whilst distribution characteristics of salt ions such as Na^+,K^+,and Ca^2+in plant tissues and rhizosphere residues were *** mean concentration of exchangeable Na^+in the rhizosphere soils was 19.5 cmol/kg,which suggested that these pioneer plants had relatively high salinity *** content varied from 0.84 cmol/kg(Digitaria sanguinalis)to 39.7 cmol/kg(Kochia scoparia),whilst K to Na ratio varied from 0.71(Myricaria bracteata)to 32.39(Digitaria sanguinalis)in the shoots,which demonstrated that the salinity tolerance mechanisms of these pioneer species differed *** factors of Na^+in local plant species ranged from 0.04(***)to 3.29(***),whilst the translocation factor varied from 0.13(***)to 2.92(***).The results suggested that four pioneer plant species including ***,***,Cynodon dactylon and *** could be suitable for revegetation at other disposal areas.

关键词： bauxite residue disposal area pioneer plants salt ions soil formation in bauxite residue revegetation

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维普期刊数据库

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Land reclamation in the refuse dump of open coal mines and its following ecology principle

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Journal of Coal Science & Engineering(China) 2006年第2期12卷 43-47页

作者：范军富王秀兰 College of Resource and Environment Engineering Liaoning Technical UniversityFuxin 123000China

Through the research on the model of the land reclamation in the refuse dumpof Heidaigou open coal mines,it was concerned that ecology was the theoretical basic forthe land reclamation of open coal *** to the principle of ecological substitut-ing,the land reclamation can be divided into three stages:water and soil conservation,ecological performance and economic *** the land reclamation in the re-fuse dump of Heidaigou open coal mines as the practical example,explained the applica-tion of the ecological substituting principle on the land reclamation in the open coal mines.

关键词： open coal mines land reclamation ecological substituting pioneer plants

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